scholarly journals Efektivitas Minyak Atsiri Serai Untuk Pengendalian Penyakit Mosaik Kacang Panjang

2017 ◽  
Vol 19 (2) ◽  
pp. 39
Author(s):  
Supyani Supyani ◽  
Salim Widono ◽  
Ulfaizah Ulfaizah
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Growth And Development ◽  
Mosaic Disease ◽  
Time Of Application ◽  
Antiviral Compounds ◽  
Randomized Design ◽  
Two Factors ◽  
The Relationship ◽  
Lemongrass Essential Oil

<p>Production of cowpea has declined, one of them caused by virus infection that caused mosaic disease which was still difficult to controlled. This study aimed to determine the effectivity of antiviral compounds on lemongrass essential oils to development of mosaic disease and the relationship to growth and development of cowpea that infected. This study used Completely Randomized Design (CRD) with two factors, they are the time of application and concentration of lemongrass essential oil. Data were analyzed using F test and DMRT at level of 5%. Results showed that application of lemongrass essential oil at concentration of 1,8% before planting (soaking seeds) tend to delaying the emergence of mosaic disease symptoms. Application of lemongrass essential oil at all of concentration that used, can inhibiting the disease intensity up to 31.39%. However, apllication of lemongrass essential oils in plants infected with a virus that causes mosaic has not able to improve plant growth and development.</p>

scholarly journals Efektivitas Ekstrak Daun Bunga Pukul Empat untuk Pengendalian Penyakit Mosaik Kacang Panjang

2017 ◽  
Vol 1 (1) ◽  
pp. 33
Author(s):  
Supyani Supyani ◽  
Sri Widadi ◽  
Wahyu Hidayah Andriyani Jamil
Keyword(s):  
Mosaic Virus ◽  
Leaf Extract ◽  
Virus Disease ◽  
Mosaic Disease ◽  
Average Weight ◽  
Time Of Application ◽  
Randomized Design ◽  
Determine Role ◽  
Mirabilis Jalapa ◽  
Two Factors

<p>Production of long beans has declined, caused by mosaic virus infection. The disease was still difficult to be control. This study aims to determine role and to measure the effectivity of Mirabilis jalapa leaf extract to inhibit long bean mosaic disease, based on the concentration of extract and time of  application. The Research was arranged by Completely Randomized Design (CRD) with two factors, time of application, and concentration of M. jalapa leaf extract. Data were analyzed  using F  test and DMRT (Duncans Multiple Range Test) at level of 5%. The results showed that application of M. jalapa leaf extract 25% one day before inoculation was best treatment to delay the emergence of the mosaic disease symptoms up to 32 days and able to increase the average weight of pods up to 104,45 grams. Soaking the seeds to extract 25% were able to suppress the virus up to 96,93%. The Application of M. jalapa leaf extract 50% with symptomatic leaf sap of mosaic simultaneously showed highest in plant’s fresh weight and biomass weight. Concentration of M. jalapa  leaf extract 25%, which applied one day before inoculation was most effective to control the mosaic virus disease.</p>

scholarly journals REPELLENCY OF CELERY ESSENTIAL OILS (Apium graveolens L.) AGAINST Spodoptera frugiperda (Lepidoptera: Noctuidae) IN THE LABORATORY

2021 ◽  
Vol 21 (2) ◽  
pp. 91-96
Author(s):  
Trisnani Alif ◽  
Fita Fitriatul Wahidah
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Spodoptera Frugiperda ◽  
Concentration Level ◽  
Apium Graveolens ◽  
Herbivorous Insects ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Lepidoptera Noctuidae

Repellency of celery essential oil (Apium graveolens L.) against Spodoptera frugiperda (Lepidoptera: Noctuidae) in thelaboratory. Essential oil is one of the ingredients that has repellent ability to herbivorous insects. Celery is one of plantscontaining essential oil which may also have the repellent ability. This study was aimed to determine the differences in therepellent ability of celery essential oils compounds that were taken from 3 different locations against S. frugiperda in thelaboratory. This research was arranged in a factorial completely randomized design (CRD) with two factors. The first factorwas the origin of the celery plants (Malang, Surabaya, and Lamongan) and the second factor was the concentration level ofessential oils (1000, 2000, and 3000 ppm) which was repeated three times. The reliability test was carried out using filter papermethod. The results showed that the essential oil extracted from celery originated from Malang with 3000 ppm concentrationhad the highest percentage level of repellency (level 5) that reached 93.33% of repellency. Location and concentration factorshad no different effect on S. frugiperda larvae repellency. There was no correlation between location and concentration on therepellency of S. frugiperda larvae.

scholarly journals Bioaktivitas ekstrak biji bintaro terhadap kutu daun Aphis gossypii GLOVER dan pengaruhnya terhadap tanaman cabai

Jurnal Agro ◽  
10.15575/8380 ◽  
2020 ◽  
Vol 7 (2) ◽  
pp. 179-192
Author(s):  
Rial Mustiarif ◽  
Djamilah Djamilah ◽  
Nanik Setyowati ◽  
Agustin Zakarni
Keyword(s):  
Insect Pest ◽  
Aphis Gossypii ◽  
Dry Weight ◽  
Seed Extract ◽  
Crop Damage ◽  
Time Of Application ◽  
Randomized Design ◽  
Aphis Gossypii Glover ◽  
Before And After ◽  
Two Factors

Aphis gossypii Glover hama penting tanaman cabai, dapat dikendalian dengan menggunakan pestisida nabati. Penelitian bertujuan untuk mengevaluasi waktu aplikasi dan konsentrasi ekstrak kasar biji bintaro (Cerbera odollam G.) dalam mengendalikan A. gossypii Glover serta pengaruhnya terhadap pertumbuhan tanaman cabai. Penelitian menggunakan Rancangan Acak Lengkap, dua faktor dan tiga ulangan. Faktor pertama adalah waktu aplikasi ekstrak (waktu sebelum dan waktu setelah infestasi A. gossypii Glover). Faktor kedua adalah konsentrasi ekstrak bintaro (0%, 1%, 2%, 3%, 4% dan 5%). Hasil penelitian menunjukkan konsentrasi 1% ekstrak biji bintaro menyebabkan mortalitas kutu daunnya 68% sedangkan pada konsentrasi 3% mortalitasnya mencapai 90%. Ekstrak biji bintaro yang diberikan sebelum hama diinfestasikan menyebabkan mortalitas kutu daun 59,5% sedangkan jika diberikan setelah hama diinfestasikan mortalitasnya meningkat menjadi 77,6%. Nilai LC50 dan LC90 ekstrak biji bintaro diaplikasikan sebelum dan setelah hama diinfestasikan secara berurutan adalah 1,8%; 4,4%; 0,57% dan 2,8%. A. gossypii Glover yang diinfestasikan pada tanaman berumur 4 minggu dan disemprot dengan ekstrak biji bintaro pada konsentrasi 1% dapat menurunkan intensitas kerusakan pada hari ke tujuh setelah infestasi dan tidak berpengaruh terhadap jumlah daun, bobot segar maupun bobot kering tanaman cabai. Ekstrak biji bintaro dapat dikembangkan sebagai pestisida nabati untuk mengendalikan hama A. gossypii Glover pada tanaman cabai. Aphis gossypii Glover is an important sucking insect pest of the pepper (Capsicum annum L.), Can be controlled by using natural pesticides. The study aimed to evaluate the application time and concentration of Cerbera odollam G. seed extract in controlling A. gossypii and their effects on pepper, C. annum. Complete randomized design was used in this experiment, with two factors, and was repeated three times. The first factor was the time of application of the extract, consisting of before and after A. gossypii infestation. The second factor was the concentration of C. odollam extract (0%, 1%, 2%, 3%, 4% and 5%). The results indicated the C. odollam seed extract affected the mortality of A. gossypii. At a concentration of 1% of C. odollam seed extract, the mortality of A. gossypii was 68% while at a concentration of 3% the mortality reached up to 90%. C. odollam seed extract applied before infestation, the mortality of A. gossypii was 59.5% whereas, after the infestation, the mortality increased up to 77.6%. LC50 and LC90 extract of C. odollam seeds applied before and after infestation were 1.8%; 4.4%; 0.57% and 2.8% respectively. A. gossypii infested at 8 weeks old pepper and sprayed with C. odollam seed extract at a concentration of 1% lowered the crop damage on the seventh day after infestation. On the other hand, the application of C. odollam seed extract did not affect the number of leaves, fresh weight, and dry weight of pepper. This study indicate that C. odollam seed extract can be developed as a natural pesticide to control A. gossypii on pepper..

scholarly journals Chemical composition of essential oil extracted from leaves of Campomanesia adamantium subjected to different hydrodistillation times

2017 ◽  
Vol 47 (1) ◽  
Author(s):  
Juliana Dantas de Oliveira ◽  
Daniely Karen Matias Alves ◽  
Mayker Lazaro Dantas Miranda ◽  
José Milton Alves ◽  
Marcelo Nogueira Xavier ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Oil Content ◽  
Chemical Constituents ◽  
Caryophyllene Oxide ◽  
Fruit Species ◽  
Randomized Design ◽  
Completely Randomized Design

ABSTRACT: Campomanesia adamantium is a native fruit species of the Cerrado and is used in food and medicines and as bee pasture. The chemical composition of essential oils obtained from plants of the same species have varying constituent proportions due to the influence of extractive factors, environmental, genetic and ontogenetic. This study aimed to identify the influence of hydrodistillation time on the content and chemical composition of essential oil extracted from the leaves of C. adamantium . Treatments consisted of five extraction times (1, 2, 3, 4, and 5h) using Clevenger with five replications in a completely randomized design. It was observed that after two hours of hydrodistillation, the essential oil content remains constant. Regarding the chemical constituents of essential oil, variation of the proportions of the compounds tested occurred at all hydrodistillation times. The compounds spathulenol oxygenated sesquiterpenes and caryophyllene oxide were the majority in the five hydrodistillation times.

scholarly journals Microencapsulation of Lemongrass (Cymbopogon citratus) Essential Oil Via Spray Drying: Effects of Feed Emulsion Parameters

Processes ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 40 ◽  
Author(s):  
Nguyen Phu Thuong Nhan ◽  
Vo Tan Thanh ◽  
Mai Huynh Cang ◽  
Tri Duc Lam ◽  
Nguyen Cam Huong ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Spray Drying ◽  
Gum Arabic ◽  
Core Material ◽  
Wall Material ◽  
Cymbopogon Citratus ◽  
Encapsulation Process ◽  
Wall Materials ◽  
Lemongrass Essential Oil

The purpose of this study was to attempt the encapsulation of lemongrass (Cymbopogon citratus) essential oil utilizing spray drying technique. An array of process parameters including concentration of wall (15–30%), type of wall materials (maltodextrin, maltodextrin and gum Arabic mixture), and concentration of essential oil (0.5–2.0%) were thoroughly investigated. The results show that the use of sole maltodextrin as encapsulant gave microcapsules characteristics comparable to that of powder produced using maltodextrin and gum Arabic mixture. The encapsulation process that was performed with maltodextrin at the concentration of 30% as wall material and lemongrass essential oil at the concentration of 1.5% as core material showed highest drying yield (84.49%), microencapsulation yield (89.31%) and microencapsulation efficiency (84.75%). Encapsulated essential oils retained most of their major constituents in comparison with the bare essential oils without any significant compromise in product quality.

scholarly journals Pertambahan Biomassa dan Produksi Minyak Atsiri Tanaman Selasih (Ocimum basilicum L.) pada Usia Panen yang Berbeda

2021 ◽  
Vol 6 (2) ◽  
pp. 124-130
Author(s):  
Rasyid Abdulaziz ◽  
Sri Widodo Agung Suedy ◽  
Munifatul Izzati
Keyword(s):  
Essential Oil ◽  
Oil Production ◽  
Ocimum Basilicum ◽  
Growth Data ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
The Relationship ◽  
Range Test ◽  
Essential Oil Production

Selasih (Ocimum basilicum L.) memiliki kandungan minyak atsiri yang dapat digunakan dalam industri kosmetik, parfum, dan medis. Penelitian ini bertujuan mengetahui hubungan usia panen dengan biomassa dan produksi minyak atsiri pada organ daun serta batang selasih. Penelitian menggunakan Rancangan Acak Lengkap (RAL) pola faktorial, dengan faktor pertama usia panen (1; 1,5; dan 2 bulan), dan faktor kedua organ tanaman (daun dan batang). Media tanam menggunakan tanah dan kompos (1:1) yang dimasukkan dalam polibag ukuran 30cm x 30cm, dan diberi naungan paranet 25%. Parameter yang diamati: data pertumbuhan (tinggi tanaman, jumlah daun dan cabang primer), biomassa, dan produksi minyak atsiri. Analisis data menggunakan Anaylysis of Variance (ANOVA) dan Duncan's Multiple Range Test(DMRT) pada taraf kepercayaan 95 %. Penelitian menunjukkan hasil bahwa tanaman yang dipanen pada umur lebih tua menunjukkan pertumbuhan, biomassa dan produksi minyak atsiri yang lebih tinggi. Pada usia 1,5 bulan, biomassa meningkat 114,485% dibanding usia 1 bulan, sedangkan pada usia 2 bulan, peningkatan biomasa 91,410%  dibanding usia1,5 bulan. Produksi minyak atsiri tertinggi dihasilkan oleh organ daun pada usia panen 2 bulan sebesar 0,273g, dan 0,023g pada organ batang. Kesimpulan penelitian ini menunjukkan bahwa usia panen berbeda berpengaruh nyata terhadap biomassa dan produksi minyak atsiri tanaman selasih. Basil (Ocimum basilicum L.) contains essential oils that can be used in the cosmetic, perfume, medical industries. This study aims to determine the relationship between harvest age and biomass and essential oil production in basil leaves and stems. The study used a completely randomized design (CRD) with a factorial pattern, with the first factor being harvest age (1; 1.5; and 2 months), and the second factor being plant organs (leaves and stems). The planting medium used soil and compost (1:1) which was put in 30cm x 30cm polybags and was given a 25% para net shade. Parameters observed: growth data (plant height, number of leaves, and primary branches), biomass, and essential oil production. Data analysis used Analysis of Variance (ANOVA) and Duncan's Multiple Range Test (DMRT) at a 95% confidence level. Research shows that plants harvested at an older age show higher growth, biomass, and essential oil production. At the age of 1.5 months, biomass increased by 114.485% compared to the age of 1 month, while at the age of 2 months, the increase in biomass was 91.410% compared to the age of 1.5 months. The highest essential oil production was produced by leaf organs at 2 months of harvesting at 0.273g, and 0.023g in stem organs. The conclusion of this study showed that different harvest ages had a significant effect on the biomass and essential oil production of basil plants.

Preparation and Characterization of Naturally Scented Candles Using the Lemongrass (Cymbopogon citratus) Essential Oil

2020 ◽  
Vol 977 ◽  
pp. 212-217
Author(s):  
Hoang Danh Pham ◽  
Tri Nhut Pham ◽  
Do Thi Kim Nga ◽  
Ngan Thi Thu Nhung ◽  
Tri Duc Lam ◽  
...  
Keyword(s):  
Citric Acid ◽  
Essential Oil ◽  
Essential Oils ◽  
Health Effects ◽  
Low Cost ◽  
Cymbopogon Citratus ◽  
Natural Sources ◽  
The Common ◽  
Lemongrass Essential Oil

At present, there are many different forms of relaxation and aromatic candles are one of the common forms. Scented candles not only provide background lighting but also help promoting a feeling of wellness. This study attempts to produce scented candles from natural sources such as soy wax, beeswax, and natural essential oils to bring the most practical benefits to the users. The produced candle should be long lasting, low cost and causes no health effects. The composition of scented candles included 60% beeswax, 30% soy wax, 8% lemongrass essential oil, 1% citric acid, and 1% ethanol.

scholarly journals Cooling and concentration of nutrient solution in hydroponic lettuce crop

2013 ◽  
Vol 31 (2) ◽  
pp. 287-292 ◽  
Author(s):  
Nilton N Cometti ◽  
Diene M Bremenkamp ◽  
Karla Galon ◽  
Leonardo R Hell ◽  
Marinaldo F Zanotelli
Keyword(s):  
Electrical Conductivity ◽  
Nutrient Solution ◽  
Growth And Development ◽  
Maximum Temperature ◽  
Root Volume ◽  
Espírito Santo ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Espirito Santo

The study was conducted in greenhouse at horticulture department of the Instituto Federal do Espírito Santo, Campus Itapina, Colatina, northwestern Espírito Santo state, Brazil, with the objective of evaluating the effect of cooling and electrical conductivity of nutrient solution on growth and development of lettuce cv. Vitória de Santo Antão in hydroponics. The study was conducted in a completely randomized design with two factors (control of the maximum temperature of the nutrient solution: 26ºC and without control; and electrical conductivity, EC, of the solution: 1, 2 and 3 dS m-1) with three repetitions. The plants were harvested fifty-two days after sowing (DAS). We evaluated the dry and fresh mass of leaves, stems and roots, stem and root length, root volume and plant water content (%). The temperature of the nutrient solution influenced the behavior of lettuce influenced by the electrical conductivity, showing that the increase of the EC did not reduce the lettuce productivity when the maximum temperature of the nutrient solution is limited, which in this experiment was tested at 26ºC. The cooling of the nutrient solution provided greater accumulation of mass and a higher water percentage in plants, increasing the productivity of hydroponic lettuce in tropical climate.

scholarly journals Uji Efektivitas Beberapa Minyak Atsiri terhadap Pertumbuhan Microsporum canis secara in Vitro

2016 ◽  
Vol 5 (1) ◽  
Author(s):  
Bunga Saridewi Nurmansyah ◽  
Aziz Djamal Djamal ◽  
Asterina Asterina
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Public Health Problem ◽  
Dilution Method ◽  
Microsporum Canis ◽  
Important Public Health Problem ◽  
Antifungal Effect ◽  
Randomized Design ◽  
Tropical Areas

AbstrakDermatofitosis merupakan masalah kesehatan masyarakat yang penting di daerah tropis. Minyak atsiri merupakan salah satu potensi alam Indonesia yang diketahui memiliki daya antifungi. Tujuan penelitian ini adalah mengetahui efektivitas beberapa minyak atsiri (serai wangi, kayu manis dan cengkeh) sebagai antijamur dalam mengendalikan pertumbuhan Microsporum canis penyebab dermatofitosis secara in vitro. Penelitian dilakukan di Laboratorium Fitopatologi KP Balittro Laing Solok dari  Februari sampai April 2014. Studi eksperimental ini dilakukan dengan metode pengenceran disusun  dalam Desain Rancang Acak Lengkap dalam Faktorial. Faktor pertama adalah jenis minyak atsiri (daun serai wangi, daun kayu manis, daun cengkeh). Faktor kedua adalah tingkat konsentrasi minyak atsiri (100 ppm, 250 ppm, 500 ppm, 1000 ppm dan 2000 ppm). Hasil penelitian ini menunjukkan bahwa minyak atsiri daun serai wangi, daun kayu manis dan daun sarasah cengkeh efektif dalam menekan pertumbuhan M. canis secara in vitro. Ketiga minyak atsiri pada konsentrasi 500 ppm telah mampu menghambat pertumbuhan M. canis hingga 100%. Minyak atsiri daun sarasah cengkeh memiliki efek antifungi paling tinggi (89,17%), diikuti minyak atsiri daun serai wangi (80,98%) dan kayu manis (77,07%).                Kata kunci: minyak atsiri, serai wangi, cengkeh, kayumanis, microsporum canis AbstractDermatophytosis is an important public health problem in tropical areas. Essential oil is one of natural potential from Indonesia has been predicted as antifungal. The objective of this study was to detect effectivity some essential oils such as citronella, cinnamon and clove as antifungal to control the growth of dermatophyte infections caused by Microsporum canis by in vitro . The study was done  in the Laboratory of Phytopathology KP Balitro of Laing Solok from February until April 2014. This is an experimental study with dilution method arranged in Complete Randomized Design in factorial. The first factor was the kind of essential oil (citronella leaf, cinnamon leaf and clove leaf). The second  factor was the level of concentration of the essential oil (100 ppm, 250 ppm, 500 ppm, 1000 ppm dan 2000 ppm). The result of this study showed the essential oil of citronella, cinnamon and cloves effective in suppressing the growth of M. canis. The three essential oil at a concentration of 500 ppm was able to inhibit the growth of M. canis to 100%. Clove essential oils have the highest antifungal effect (89,17%), while citronella essential oil 80,98% and cinnamon 77,07%.Keywords: essential oil, citronella, cinnamon, clove, microsporum canis

scholarly journals Pengaruh Waktu Ekstraksi, Rasio Bahan/Pelarut, dan Daya Microwave Terhadap Hasil Ekstraksi Minyak Serai Dapur dengan Bantuan Gelombang Mikro

2021 ◽  
Vol 10 (2) ◽  
pp. 51-57
Author(s):  
Venitalitya A. S. Augustia ◽  
Naufal Charfadz ◽  
Rizki Akbar ◽  
Diana
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Soxhlet Extraction ◽  
Geranyl Acetate ◽  
Solvent Ratio ◽  
Microwave Assisted ◽  
Lemongrass Oil ◽  
Oil Density ◽  
Lemongrass Essential Oil

Lemongrass, one type of source of essential oils, is widely cultivated in Indonesia. There are several methods for extracting the essential oils from lemongrasses, such as hydro-distillation, steam distillation, soxhlet extraction, extraction with supercritical fluids, ultrasonic extraction, and microwave-assisted hydro-distillation. In this study, microwave-assisted hydro-distillation was used as the extraction method. The purpose of this study was to determine the effect of extraction time (60 minutes, 75 minutes, and 90 minutes), lemongrass/solvent ratio (1:4 g/mL and 1:5 g/mL), and microwave power (500 watt and 600 watt) on quantity and quality of lemongrass essential oil. The essential oils obtained were analyzed in the form of calculation of the essential oil density, yield, and GC-MS analysis. The results of the analysis showed that the density of the extracted lemongrass oil ranged from 0.880 g/mL – 0.920 g/mL at a temperature of 30 oC, with the highest yield ranging from 0.0044% – 0.0046% in samples with a material/solvent ratio of 1:5 g/mL. The components found in lemongrass oil were Z-citral, geranyl acetate, geraniol.

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